472 BOTANICAL GAZETTE [DECEMBER 
Fics. 3—5.—Division of body cell; < 865. 
Fic. 6.—Central cell and two neck cells; X 510. 
Fic. 7.—Ventral canal cell and egg nucleus; X 510. 
Fics. 8, 9.—Mitosis of nucleus of central cell; 865. 
Fic. 10.—An archegonium: egg nucleus, ventral canal cell with wall broken 
and escaped nucleus in the cytoplasm of the egg; 
IGS. 11, 12.—Nucleus of ventral canal cell escaping. 
. 13.—Egg nucleus near a male nucleus; ventral canal cell nucleus, 
and near by the other male nucleus and stalk nucleus. 
IG. 14.—Detail of egg nucleus of fig. 10 
15.—Two archegonia, one showing fertilization of both egg and ventral 
canal cal nucleus; X85. 
Fic. 16.—Divisions following the two fusions; 85. 
Fic. 17.—Ventral canal cell nucleus: a male nucleus and the stalk nucleus 
in contact; X 510. 
Fic. 18.—Fusion nucleus resulting from union of ventral canal cell nucleus 
and male nucleus; X 510 
IG. 19.—_Egg psoas and male nucleus in contact; X 51 
20.—Egg and male nucleus in contact (see ‘etal ji in he 19): 
oak canal cell nucleus as described for fig. 18; 510 
21.—An archegonium showing the egg cialend, ventral canal cell 
nucleus, four male nuclei, a stalk nucleus, and two pollen tubes; > 510. 
IG. 22.—Postion and relation of ventral proembryo and proembryo 
proper; X 510. 
Fics. 23-26.—Detail of division following the fertilization of the ventral 
canal cell nucleus; 86s. 
Fic. 27.—Nucleus of the fertilized egg; 510 
Fic. 28.—Nucleus of the fertilized egg: two groups of chromosomes; 
10. 
Fics. 29-33.—Pairing of chromosomes; X 
Fics. 34-40.—Segmentation of chromosomes; X86 + 
Fics. 41, 42.—Paired segments; X 865. 
Fics. 43-45.—Chromosome segments intermingling, still somewhat 
paired; X 865. 
Fics. 46-48.—Chromosomes starting to the poles; 865. 
Fic. 49.—Early telophase of first division; 865. 
FIGs. 50, 52, 55.—Late telophase of first division; 865. 
Fic. 51.—Anaphase of first division; 865. 
Fic. 53. —Resting stage of nucleus from ventral proembryo; 865. 
Fic. 54.—Resting stage of nucleus of the proembryo; X 865. 
